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Abstract <p>When studying waterlogged tundra soils of the Pleistocene Park nature reserve using light and scanning electron microscopy, 133 species of Bacillariophyta from 36 genera, 25 families, 14 orders and 3 classes were identified. Of these, 13 species are new to the flora of the Kolyma River basin, 10 are new to the flora of Russia, and 7 taxa are identified only to the genus level. The genera with the most taxonomic diversity are <i>Gomphonema</i> (25 species), <i>Eunotia</i> (16), <i>Pinnularia</i> (10), <i>Encyonema</i> (8), <i>Cymbella</i> (7), <i>Nitzschia</i> (7). The species composition of the studied samples was more similar to those of aquatic ecosystems of the Kolyma River basin and nearby lakes (95 common taxa), which is apparently associated with periodic flooding of the studied soils.</p>

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Bacillariophyta of Tundra Soils of the Pleistocene Park Nature Reserve, Republic of Sakha (Yakutia), Russia

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • V. B. Bagmet,
  • V. M. Kazarin

摘要

Abstract

When studying waterlogged tundra soils of the Pleistocene Park nature reserve using light and scanning electron microscopy, 133 species of Bacillariophyta from 36 genera, 25 families, 14 orders and 3 classes were identified. Of these, 13 species are new to the flora of the Kolyma River basin, 10 are new to the flora of Russia, and 7 taxa are identified only to the genus level. The genera with the most taxonomic diversity are Gomphonema (25 species), Eunotia (16), Pinnularia (10), Encyonema (8), Cymbella (7), Nitzschia (7). The species composition of the studied samples was more similar to those of aquatic ecosystems of the Kolyma River basin and nearby lakes (95 common taxa), which is apparently associated with periodic flooding of the studied soils.